rio_init_mbox_res(res, mbox, mbox);
 
                /* Make sure this mailbox isn't in use */
-               if ((rc =
-                    request_resource(&mport->riores[RIO_INB_MBOX_RESOURCE],
-                                     res)) < 0) {
+               rc = request_resource(&mport->riores[RIO_INB_MBOX_RESOURCE],
+                                     res);
+               if (rc < 0) {
                        kfree(res);
                        goto out;
                }
                rio_init_mbox_res(res, mbox, mbox);
 
                /* Make sure this outbound mailbox isn't in use */
-               if ((rc =
-                    request_resource(&mport->riores[RIO_OUTB_MBOX_RESOURCE],
-                                     res)) < 0) {
+               rc = request_resource(&mport->riores[RIO_OUTB_MBOX_RESOURCE],
+                                     res);
+               if (rc < 0) {
                        kfree(res);
                        goto out;
                }
                                  u16 info))
 {
        int rc = 0;
-       struct rio_dbell *dbell;
+       struct rio_dbell *dbell = kmalloc(sizeof(*dbell), GFP_KERNEL);
 
-       if (!(dbell = kmalloc(sizeof(struct rio_dbell), GFP_KERNEL))) {
+       if (!dbell) {
                rc = -ENOMEM;
                goto out;
        }
                rio_init_dbell_res(res, start, end);
 
                /* Make sure these doorbells aren't in use */
-               if ((rc =
-                    request_resource(&mport->riores[RIO_DOORBELL_RESOURCE],
-                                     res)) < 0) {
+               rc = request_resource(&mport->riores[RIO_DOORBELL_RESOURCE],
+                                     res);
+               if (rc < 0) {
                        kfree(res);
                        goto out;
                }
                                                 ext_ftr_ptr, &ftr_header);
                if (RIO_GET_BLOCK_ID(ftr_header) == ftr)
                        return ext_ftr_ptr;
-               if (!(ext_ftr_ptr = RIO_GET_BLOCK_PTR(ftr_header)))
+
+               ext_ftr_ptr = RIO_GET_BLOCK_PTR(ftr_header);
+               if (!ext_ftr_ptr)
                        break;
        }